Testing and building theories: mixed methods synthesis

فهرست عناوین اصلی در این پاورپوینت

فهرست عناوین اصلی در این پاورپوینت

● Testing and building theories: mixed methods synthesis
● Synthesis methods
● Mixed methods systematic reviews
● A mixed methods review
● Review questions
● REVIEW PROCESS
● Methods for synthesis 1: ‘Quantitative’ (Trials)
● Findings for synthesis 1: ‘Quantitative’ (Trials)
● Synthesis 2: thematic synthesis
● Stage 1 and stage 2
● Line-by-line coding in EPPI-Reviewer
● NVivo – example
● Axial coding
● Structuring the descriptive codes into descriptive themes
● Final list of descriptive themes
● Stage 3: generating analytical themes
● Example: generating analytical themes (1)
● Example: generating analytical themes (2)
● Stage 3: Analytical themes
● Implications for interventions
● Synthesis 3: Across studies
● ‘Mixed method’ systematic reviews
● Other examples

نوع زبان: انگلیسی حجم: 1.87 مگا بایت
نوع فایل: اسلاید پاورپوینت تعداد اسلایدها: 29 صفحه
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گروه موضوعی: زمان استخراج مطلب: 2019/05/17 04:52:11

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عبارات مهم استفاده شده در این مطلب

عبارات مهم استفاده شده در این مطلب

synthesis, review, ., study, method, e.g., theme, qualitative, `, descriptive, ‘, analysis,

توجه: این مطلب در تاریخ 2019/05/17 04:52:11 به صورت خودکار از فضای وب آشکار توسط موتور جستجوی پاورپوینت جمع آوری شده است و در صورت اعلام عدم رضایت تهیه کننده ی آن، طبق قوانین سایت از روی وب گاه حذف خواهد شد. این مطلب از وب سایت زیر استخراج شده است و مسئولیت انتشار آن با منبع اصلی است.

http://eprints.ncrm.ac.uk/262/1/Mixed_methods.ppt

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عبارات پرتکرار و مهم در این اسلاید عبارتند از: synthesis, review, ., study, method, e.g., theme, qualitative, `, descriptive, ‘, analysis,

مشاهده محتوای متنیِ این اسلاید ppt

مشاهده محتوای متنیِ این اسلاید ppt

testing and building theories mixed methods synthesis sub brand to go here esrc research methods festival st catherine’s college oxford ۳ th june to ۳rd july session ۲۲ systematic reviews ۲ angela harden methods for research synthesis node esrc national centre for research methods synthesis methods for effects of interventions vote counting statistical meta analysis for qualitative research meta ethnography e.g. noblit and hare ۱۹۸۸ grounded formal theory e.g. kearney ۱۹۹۸ thematic synthesis e.g. thomas and harden ۲ ۷ for diverse study types bayesian synthesis e.g. jones et al. ۲ ۲ meta narrative synthesis e.g. greenhalgh et al. ۲ ۵ realist synthesis e.g. pawson ۲ ۶ critical interpretive synthesis e.g. dixon woods et al. ۲ ۶ mixed methods systematic reviews e.g. harden and thomas ۲ ۵ mixed methods systematic reviews working definition combining the findings of ‘qualitative’ and ‘quantitative’ studies within a single systematic review in order to address the same overlapping or complementary review questions mixed methods systematic reviews key principles transparency involve users avoiding bias awareness and acknowledgement of error in primary studies and review process methods of review adapted depending on study type under review e.g. different methods of critical appraisal for trials and for qualitative research e.g. principles of qualitative data analysis are used to synthesis qualitative studies complementary view of qualitative and quantitative research combining strengths of each mixed methods systematic reviews three senses in which reviews are mixed methods the types of studies included and hence the type of findings to be synthesised i.e. ‘qualitative textual and quantitative numerical the types of synthesis method used e.g. statistical meta analysis and qualitative synthesis the mode of analysis theory testing and theory building a mixed methods review children and healthy eating a systematic review of barriers and facilitators thomas j sutcliffe k harden a oakley a oliver s rees r brunton g kavanagh j ۲ ۳ children and healthy eating a systematic review of barriers and facilitators. london eppi centre social science research unit institute of education university of london the full report of this review is available at the eppi centre website http eppi.ioe.ac.uk eppiweb home.aspx . review questions what is known about the barriers to and facilitators of healthy eating amongst children do interventions promote healthy eating amongst children what are children’s perspectives on healthy eating what are the implications of the above for intervention development review process searching screening and mapping synthesis ۱ trials n ۳۳ ۱. quality assessment ۲. data extraction ۳. statistical meta analysis synthesis ۲ qualitative studies n ۸ ۱. quality assessment ۲. data extraction ۳. thematic synthesis synthesis ۳ trials and qualitative studies focus narrowed to ‘fruit veg’ the main focus in the rest of this presentation is the cross study synthesis but first need to say a little bit about how the views synthesis was done. methods for synthesis ۱ ‘quantitative’ trials effect sizes from trials pooled using statistical meta analysis six different outcomes heterogeneity across studies explored via sub group analysis qualitative analysis of textual data from trials read that last point is a narrative description of populations interventions and outcomes across all the included studies. i just wanted to point out that ‘qualitative analysis’ is something that you all do in your systematic reviewing already findings for synthesis ۱ ‘quantitative’ trials looking at the forest plot of our meta analysis we see that combining the results of the trials using a random effects model we found a positive effect for fruit and vegetable consumption and that when we calculated the ‘number needed to eat’ on average the interventions were able to increase fruit and vegetable consumption by approximately half a portion per day. there was great variability between the studies though – both in terms of clinical and statistical heterogeneity and in the results of the individual studies. one intervention was able to increase consumption by nearly two portions per day whilst most of the others did not achieve one portion. we tried to explain the statistical heterogeneity using pre specified categories covering study quality study design setting and type of intervention. however our codes were unable to account for the observed statistical heterogeneity in all outcomes. given that all but two of the studies were evaluating different intervention programmes the summary statistic – that overall these interventions were able to increase fruit and vegetable consumption by half a portion per day – seems to be unremarkable. synthesis ۲ thematic synthesis stage ۱ and ۲ coding text and developing descriptive themes stage ۳ generating analytical themes stage ۱ and stage ۲ data were author descriptions of study findings line by line coding applied to data ۳۶ initial descriptive codes e.g. bad foods nice good foods awful looked for similarities and differences among descriptive codes in order to group them ۱۳ descriptive themes e.g. ‘perceptions of health benefits’ line by line coding in eppi reviewer nvivo example descriptive codes in nvivo axial coding structuring the descriptive codes into descriptive themes final list of descriptive themes stage ۳ generating analytical themes the descriptive themes stayed very ‘close’ to the content of the primary studies but… our synthesis of descriptive themes did not answer our review question directly barriers and facilitators framework what do children think stops them from eating healthily what do children think helps them to eat healthily what ideas do children have for what could or should be done to promote their healthy eating ‘recommendations for interventions’ analytical themes emerged through a cyclical process which involved interrogating the descriptive themes to answer these questions example generating analytical themes ۱ five of the ۱۲ descriptive themes concerned the influences on children’s choice of foods food preferences perceptions of health benefits knowledge behaviour gap roles and responsibilities non influencing factors children identified that taste was the major concern for them when selecting food health was either a secondary factor or in some cases a reason for rejecting food buying healthy food was not a legitimate use of their pocket money which they would use to buy sweets that could be enjoyed with friends example generating analytical themes ۲ these perspectives indicated to us that branding fruit and vegetables as a ‘tasty’ …

کلمات کلیدی پرکاربرد در این اسلاید پاورپوینت: synthesis, review, ., study, method, e.g., theme, qualitative, `, descriptive, ‘, analysis,

این فایل پاورپوینت شامل 29 اسلاید و به زبان انگلیسی و حجم آن 1.87 مگا بایت است. نوع قالب فایل ppt بوده که با این لینک قابل دانلود است. این مطلب برگرفته از سایت زیر است و مسئولیت انتشار آن با منبع اصلی می باشد که در تاریخ 2019/05/17 04:52:11 استخراج شده است.

http://eprints.ncrm.ac.uk/262/1/Mixed_methods.ppt

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